
6
doesn't work, the instrument into the automatic temperature
compensation, the temperature of the displa is the solution
f) After clean wit distilled water, t e electrode can be used to test
solution.
4.2 Measuring the value
After t e calibration of t e instrument, can be used to measure and test
solution. Immerse t e electrode in t e test solution, stirring solution wit a
glass rod, make it uniform, read t e reading of t e solution on t e LCD
screen. Press t e “COND/TDS” button if TDS need to be measured.
5. MAINTENANCE
Instruments frequently correct use and maintenance, to ensure t e
instrument normal and reliable to use, especially t e pH meter t is kind
of instrument, it as t e very ig input impedance, and using t e
environment to be often contact c emicals, so it need more reasonable
maintenance.
1, T e input port of t e instrument (measuring electrode socket) must be
kept dry and clean. W en instrument is not in use, insert t e plug of
BNC s ort-circuit outlet, to prevent dust and moisture get in.
2, W en in measuring, t e electrode wire s ould remain still, ot erwise it
will cause unstable measurement.
3, Instrument used MOS integrated circuit, so it s ould be to ensure t at
t e soldering iron ave good grounding w en in repairing.
4, W en using t e buffer solution to calibrate instruments, please ensure
t e reliability of t e buffer solution, don't make t e wrong buffer solution,
ot erwise will lead to a measurement error.